| Menomonee Falls to Octeville | 3,912.78 mi (6,297.00 km) |
| Menomonee Falls to Oignies | 4,060.83 mi (6,535.27 km) |
| Menomonee Falls to Oissel | 4,028.80 mi (6,483.73 km) |
| Menomonee Falls to Olivet | 4,113.78 mi (6,620.49 km) |
| Menomonee Falls to Ollioules | 4,455.36 mi (7,170.20 km) |
| Menomonee Falls to Olonne-sur-Mer | 4,014.84 mi (6,461.26 km) |
| Menomonee Falls to Oloron-Sainte-Marie | 4,185.89 mi (6,736.54 km) |
| Menomonee Falls to Onet Village | 4,273.87 mi (6,878.13 km) |
| Menomonee Falls to Onnaing | 4,086.43 mi (6,576.47 km) |
| Menomonee Falls to Orange | 4,372.92 mi (7,037.54 km) |
| Menomonee Falls to Orchies | 4,070.02 mi (6,550.07 km) |
| Menomonee Falls to Orleans | 4,112.69 mi (6,618.73 km) |
| Menomonee Falls to Orly | 4,100.64 mi (6,599.35 km) |
| Menomonee Falls to Ormesson-sur-Marne | 4,104.72 mi (6,605.91 km) |
| Menomonee Falls to Orsay | 4,094.38 mi (6,589.26 km) |
